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Homemade Spring Piston Valve idea

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Homemade Spring Piston Valve idea

Unread postAuthor: Spuddin » Mon May 21, 2007 9:28 am

Here is my first design for a fast opening spring loaded piston valve. Any improvement ideas please post.
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Unread postAuthor: ShowNoMercy » Mon May 21, 2007 9:56 am

Could you explain what the steps are here? I am not getting what exactly is going on....
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Unread postAuthor: jackssmirkingrevenge » Mon May 21, 2007 10:26 am

That's roughly the same idea as I used in my 10mm pneumatic - it will work, but the benefits when compared to a properly exhausted conventional piston valve are dubious.
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Unread postAuthor: Spuddin » Mon May 21, 2007 10:51 am

i hope this helps, the plunger stays up against the barrel inside the air chamber. when the trigger is activated the plunger (seal) pops back away from the barrel and allows the air into the barrel.
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Unread postAuthor: Spuddin » Mon May 21, 2007 10:52 am

well sorry but that pic didnt come out clear for some reason.
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Unread postAuthor: boilingleadbath » Mon May 21, 2007 2:57 pm

If it didn't, it's either because you didn't click the picture (click it, it'll open in a new window, at full size) or because there's something wrong with your system.
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Unread postAuthor: iknowmy3tables » Mon May 21, 2007 3:07 pm

you wouldn't need the spring if the piston was a little larger, but its hard tell how mush force must be applied to the sealing face to make it seal, so its better to have a inserting o ring plug like on a lot of clide's gun
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